ECSS-Q-ST-70C Rev.1esa.vpsearch.nl/wordpress/wp-content/uploads/standards/... · Web viewThis Standard has been prepared by the ECSS-Q-ST-70C Rev.1 Working Group endorsed by the document

ECSS-Q-ST-70C Rev.115 October 2014

Space product assuranceMaterials, mechanical parts and processes

ECSS SecretariatESA-ESTEC

Requirements & Standards DivisionNoordwijk, The Netherlands


ForewordThis Standard is one of the series of ECSS Standards intended to be applied together for the management, engineering and product assurance in space projects and applications. ECSS is a cooperative effort of the European Space Agency, national space agencies and European industry associations for the purpose of developing and maintaining common standards. Requirements in this Standard are defined in terms of what shall be accomplished, rather than in terms of how to organize and perform the necessary work. This allows existing organizational structures and methods to be applied where they are effective, and for the structures and methods to evolve as necessary without rewriting the standards.This Standard has been prepared by the ECSS-Q-ST-70C Rev.1 Working Group endorsed by the document and discipline focal point and approved by the ECSS Technical Authority.

DisclaimerECSS does not provide any warranty whatsoever, whether expressed, implied, or statutory, including, but not limited to, any warranty of merchantability or fitness for a particular purpose or any warranty that the contents of the item are error-free. In no respect shall ECSS incur any liability for any damages, including, but not limited to, direct, indirect, special, or consequential damages arising out of, resulting from, or in any way connected to the use of this Standard, whether or not based upon warranty, business agreement, tort, or otherwise; whether or not injury was sustained by persons or property or otherwise; and whether or not loss was sustained from, or arose out of, the results of, the item, or any services that may be provided by ECSS.

Published by: ESA Requirements and Standards DivisionESTEC, P.O. Box 299,2200 AG NoordwijkThe Netherlands

Copyright: 2014© by the European Space Agency for the members of ECSS

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Change log

ECSS-Q-70A19 April 1996

First issue

ECSS-Q-70B14 December 2004

Second issue

ECSS-Q-ST-70C6 March 2009

Third issue


Third issue Revision 1Changes with respect to the previous version are identified with revision tracking.Main changes are: Transfer of several requirements (sometimes modified) from

ECSS-Q-70-71A Rev.1. Alignment of the three Standards ECSS-E-ST-32-08C Rev.1,

ECSS-Q-ST-70C Rev.1 and ECSS-Q-ST-70-71C. Clauses transferred from ECSS-Q-70-71A Rev.1:

- Clause 5.1.18 "Bacterial and fungus growth" added- Clause 5.1.19 "Hydrogen embrittlement" added- Clause 5.1.20 "Manned environment" added

Addition or definition for term "mechanical part" Deletion of definition for term "part" Modification of term "special process" Change of title of clause 4.1.3 from "Customer reviews" to

"MMPP Manager and MPCB" including deletion and addition of requirements

Title of clause 4.5 changed to read "Safety hazardous mechanical parts and materials"

Addition of clause 4.7 " Selection of space materials and processes"

Title of clause 5.1.3 changed to include "thermo optical" and addition of two thermo optical requirements

Addition of clause 5.1 18 "Bacterial and fungus growth" Addition of clause 5.1.19 "Hydrogen embrittlement" Title of clauses 6.7.1, 6.7.2, 6.7.4 and 6.7.5 changed to read

"mechanical parts" instead of "parts" Deletion of clause 7.2 "Associated materials and mechanical

parts" Title of clause 7.3 changed to read "Process selection and

training" Implementation of TA approved Change Requests.

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Added requirements:4.1.3c to i; 4.2.2h; 4.2.3i and j; 4.7a; 5.1.1a and b, 5.1.3d and e; 5.1.4c and d; 5.1.5c and d; 5.1.7b to e; 5.1.9b; 5.1.11c and d; 5.1.13c; 5.1.14b and c; 5.1.16b; 5.1.18a to e; 5.1.19a to d; 5.2.1c to j; 5.2.2c to h; 5.5.3c; 6.2d and e; 6.5.3c; 7.3c to n; 7.6.3e; 7.6.4b; A.2.1<2>b; C.2.1<2>b.

Modified requirements:4.1.2a; 4.2.2b to g; 4.2.3d to g; 4.2.4a to d; 4.3a, b and d; 4.4b and c; 4.5a, 4.6a; 5.1.2 NOTE added; 5.1.3b and c; 5.1.4b; 5.1.5a and b; 5.1.6a; 5.1.7a; 5.1.8a; 5.1.9a; 5.1.10a and b; 5.1.11a; 5.1.13a and b; 5.1.14a (requirement split into two); 5.1.15a; 5.1.16a; 5.1.17a; 5.2.1a and b; 5.2.2b; 5.4.2b and c; 5.5.1a and b; 5.5.2a and b; 5.5.3 a and b; 5.5.4a and b; 5.5.5a; 5.6.1a, d and f; 5.7.2a and b; 5.7.4a and b; 5.7.5a; 5.7.6a; 6.1a; 6.2a and c; 6.4.2a and c; 6.5.1a; 6.5.2a and b; 6.5.3a and b; 6.5.4 and b; 6.5.5a; 6.6.1a and b; 6.6.2a to c; 6.6.3a and b; 6.6.4a; 6.7.2a and b; 6.7.3a; 6.7.4a to b; 6.7.5a; 7.3a and b; 7.5.2c and e; 7.6.1a and b; 7.6.2a; 7.6.3b and d; 7.6.4a; 7.6.5a; 7.7.1b; 7.7.2a; 7.7.3a and b; 7.7.4a; 7.7.5a; 7.7.6a; A.2.1<2>a; B.2.1<2>a; C.2.1<2>a.

Deleted requirements:4.1.3a and b; 4.3c; 5.1.4a; 5.1.11b; 5.4.2d; 7.2a; 7.5.2f;

Editorial corrections: Addition of "welding" in comments column, and modification of

NOTE 3 text of Table 4-1 A.1.1 cross-references updated; removal of example in Table

Table A-1. Note to A.2.2b modified; Example in A.2.2Figure A-1 modified B.1.1 cross-references updated, and Note to B.2.2b modified C.1.1 cross-references updated Note to C.2.2b modified, and Example in C.2.2Figure C-1

modified D.1.1 cross-references updated Note to C.2.2b modified, and Example in C.2.2Figure C-1

modified In first sentence of Annex F "parts" changed to read

"mechanical parts"

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Table of contents

Change log.........................................................................................................3

1 Scope.............................................................................................................10

2 Normative references...................................................................................11

3 Terms, definitions and abbreviated terms.................................................133.1 Terms from other standards............................................................................13

3.2 Terms specific to the present standard............................................................13

3.3 Abbreviated terms............................................................................................14

3.4 Nomenclature..................................................................................................15

4 General requirements..................................................................................164.1 MMPP management requirements..................................................................16

4.1.1 Overview............................................................................................16

4.1.2 MMPP plan........................................................................................16

4.1.3 MMPP Manager and MPCB...............................................................19

4.2 Management and consolidation of the activities..............................................20

4.2.1 Overview............................................................................................20

4.2.2 Establishing and processing of lists...................................................20

4.2.3 Management of the lists.....................................................................21

4.2.4 Supplier role and responsibilities.......................................................22

4.3 Technical constraints.......................................................................................23

4.4 Cleanliness and contamination control............................................................23

4.5 Safety hazardous mechanical parts and materials..........................................23

4.6 Optical, mechanical or electrical GSE hardware.............................................23

4.7 Selection of space materials and processes...................................................24

5 Materials control...........................................................................................255.1 Technical criteria for selection of materials......................................................25

5.1.1 General..............................................................................................25

5.1.2 Temperature......................................................................................25

5.1.3 Thermal cycling and thermo optical...................................................25

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5.1.4 Vacuum..............................................................................................26

5.1.5 Offgassing and toxicity.......................................................................26

5.1.6 Flammability.......................................................................................27

5.1.7 Radiation............................................................................................27

5.1.8 Electrical charge and discharge.........................................................27

5.1.9 Corrosion...........................................................................................27

5.1.10 Stresscorrosion..................................................................................28

5.1.11 Fluid compatibility..............................................................................28

5.1.12 Galvanic compatibility........................................................................28

5.1.13 Atomic oxygen...................................................................................28

5.1.14 Micrometeoroids and debris..............................................................29

5.1.15 Moisture absorption and desorption..................................................29

5.1.16 Mechanical contact surface effects: cold welding, fretting, wear.......31

5.1.17 Life.....................................................................................................31

5.1.18 Bacterial and fungus growth..............................................................31

5.1.19 Hydrogen embrittlement.....................................................................31

5.2 Selection..........................................................................................................32

5.2.1 General..............................................................................................32

5.2.2 Constraints.........................................................................................33

5.3 Declared materials list (DML)..........................................................................33

5.4 Criticality analysis............................................................................................33

5.4.1 Overview............................................................................................33

5.4.2 Requirements.....................................................................................34

5.5 Evaluation and validation phases....................................................................34

5.5.1 General..............................................................................................34

5.5.2 Evaluation phase...............................................................................34

5.5.3 Validation phase................................................................................35

5.5.4 Approval phase..................................................................................35

5.5.5 Deviation request...............................................................................35

5.6 Procurement of materials.................................................................................35

5.6.1 Procurement specifications................................................................35

5.6.2 Incoming inspection procedure..........................................................36

5.7 Use of materials...............................................................................................36

5.7.1 Validation status of materials.............................................................36

5.7.2 Traceability of materials.....................................................................36

5.7.3 Packaging, storage, removal from storage........................................36

5.7.4 Limitedlife materials before implementation......................................37

5.7.5 Limitedlife materials after implementation.........................................37

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5.7.6 Materials nonconformances and alerts..............................................37

5.7.7 Health and safety...............................................................................37

6 Mechanical parts control.............................................................................386.1 Selection of mechanical parts..........................................................................38

6.2 Selection..........................................................................................................38

6.3 Declared mechanical parts list (DMPL)...........................................................38


6.4.1 Overview............................................................................................39

6.4.2 Requirements.....................................................................................39

6.5 Evaluation and qualification phases................................................................39

6.5.1 General..............................................................................................39


6.5.3 Qualification phase............................................................................40

6.5.4 Approval phase..................................................................................40


6.6 Procurement of mechanical parts....................................................................41

6.6.1 General..............................................................................................41

6.6.2 Procurement specification..................................................................41

6.6.3 Source inspection..............................................................................41

6.6.4 Incoming inspection procedure..........................................................41

6.7 Use of mechanical parts..................................................................................41

6.7.1 Qualification status of mechanical parts............................................41

6.7.2 Traceability of mechanical parts........................................................42


6.7.4 Limitedlife mechanical parts or parts subject to wearout.......................42

6.7.5 Mechanical parts nonconformances and alerts.................................42

7 Process control............................................................................................437.1 Specifications or procedures...........................................................................43

7.2 << deleted >>...................................................................................................43

7.3 Process selection and training.........................................................................43

7.4 Declared processes list (DPL).........................................................................44


7.5.1 Overview............................................................................................44

7.5.2 Requirements.....................................................................................44

7.6 Evaluation and verification phase....................................................................45

7.6.1 General..............................................................................................45


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7.6.3 Verification phase..............................................................................45

7.6.4 Approval phase..................................................................................46


7.7 Use of a process..............................................................................................46

7.7.1 Verification status of a process..........................................................46

7.7.2 Reverification of a process.................................................................46

7.7.3 Implementation of a process..............................................................47

7.7.4 Traceability of processes...................................................................47

7.7.5 Process nonconformances and alerts...............................................47

7.7.6 Mandatory inspection points (MIP)....................................................47


Annex A (normative) Declared materials list (DML) - DRD..........................49A.1 DRD identification............................................................................................49

A.2 Expected response..........................................................................................49

Annex B (normative) Declared mechanical parts list (DMPL) - DRD..........56B.1 DRD identification............................................................................................56

B.2 Expected response..........................................................................................56

Annex C (normative) Declared process list (DPL) - DRD.............................62C.1 DRD identification............................................................................................62

C.2 Expected response..........................................................................................62

Annex D (normative) Request for approval (RFA) - DRD.............................67D.1 DRD identification............................................................................................67

D.2 Expected response..........................................................................................67

Annex E (informative) Relationship between materials, mechanical parts, processes activities and programme phases...........................................71E.1 Feasibility phase (phase A).............................................................................71

E.2 Preliminary definition phase (phase B)............................................................71

E.3 Detailed definition and production phase (phase C or D).....................................71

E.4 Utilization phase (phase E)..............................................................................72

Annex F (informative) MMPP documents delivery with respect to milestones...................................................................................................73

Bibliography.......................................................................................................75

Figures

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Figure 4-1: Materials, mechanical parts and processes flow chart 17

Figure A-1 : Example of a realized DML 55

Figure B-1 : Example of a realized DMPL 61

Figure C-1 : Example of realized DPL 66

Figure D-1 : Example of RFA (Page 1 of 2) 69

Figure D-1 : Example of RFA (Page 2 of 2) 70

Tables

Table 4-1: Steps to be taken to get approval for materials, mechanical parts and processes (MMPP) 19

Table 5-1 Compatible couples for bimetallic contacts 30

Table A-1 : Material group numbers 50

Table A-2 : Environmental code 52

Table A-3 : Size code 53

Table A-4 : Approval status 54

Table B-1 : Mechanical part group numbers 57

Table B-2 : Environmental code 58

Table B-3 : Approval status 60

Table C-1 : Process group numbers 63

Table C-2 : Approval status 65

Table F-1 : MMPP documents delivery w.r.t. milestones 74

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1Scope

The purpose of thisThis Standard is to definespecifies the requirements and statements applicable to materials, mechanical parts and processes to satisfy the mission performance requirements. This Standard also definesspecifies the documentation requirements and the procedures relevant to obtaining approval for the use of materials, mechanical parts and processes in the fabrication of space systems and associated equipment. This Standard covers the following: management, including organization, reviews, acceptance

status and documentation control; selection criteria and rules; evaluation, validation and qualification, or verification testing; procurement and receiving inspection; utilization criteria and rules.The relationship between activities and programme phases is defined in Annex E.The provisions of this Standard apply to all actors involved at all levels in the production of space systems. These can include manned and unmanned spacecraft, launchers, satellites, payloads, experiments, electrical ground support equipment, mechanical ground support equipment, and their corresponding organizations.This standard may be tailored for the specific characteristics and constraints of a space project in conformance with ECSS-S-ST-00.

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2Normative references

The following normative documents contain provisions which, through reference in this text, constitute provisions of this ECSS Standard. For dated references, subsequent amendments to, or revisions of any of these publications do not apply. However, parties to agreements based on this ECSS Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references the latest edition of the publication referred to applies.

ECSS-S-ST-00-01 ECSS system - Glossary of termsECSS-E-ST-20-06 Space engineering - Spacecraft charging ECSS-M-ST-80 Space product assurance - Risk managementECSS-Q-ST-10 Space product assurance - Product assurance

managementECSS-Q-ST-10-04 Space product assurance - Critical-item controlECSS-Q-ST-10-09 Space product assurance - Nonconformance

control systemECSS-Q-ST-20 Space product assurance - Quality assuranceECSS-Q-ST-40 Space product assurance - SafetyECSS-Q-ST-70-01 Space product assurance - Cleanliness and

contamination and controlECSS-Q-ST-70-02 Space product assurance - Thermal vacuum

outgassing test for the screening of space materials

ECSS-Q-ST-70-04 Space product assurance - Thermal testing for the evaluation of space materials, processes, mechanical parts and assemblies

ECSS-Q-ST-70-06 Space product assurance - Particle and UV radiation testing of space materials

ECSS-Q-ST-70-09 Space product assurance - Measurements of thermo-optical properties of thermal control materials

ECSS-Q-ST-70-21 Space product assurance - Flammability testing for the screening of space materials

ECSS-Q-ST-70-22 Space product assurance - Control of limited shelflife materials

ECSS-Q-ST-70-29 Space product assurance - Determination of offgassing products from materials and assembled articles to be used in a manned space vehicle crew compartment

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ECSS-Q-ST-70-36 Space product assurance - Material selection for controlling stresscorrosion cracking

ECSS-Q-ST-70-37 Space product assurance - Determination of the susceptibility of metals to stresscorrosion cracking

ECSS-Q-ST-70-71 Space product assurance -Data for Materials, processes and their data selection of space materials and processes

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3Terms, definitions and abbreviated terms

3.1 Terms from other standardsa. For the purpose of this Standard, the terms and definitions

from ECSS-S-ST-00-01 apply, in particular for the following terms:1. materialmechanical part

3.2 Terms specific to the present standard3.2.1 critical mechanical part mechanical part that requires specific attention or control due to fracture mechanics aspects and limitedlife aspects, or with which the supplier has no previous experience of using the mechanical part in the specific application and environment or that are new or non-qualified, or that has caused problems during previous use that remain unresolved

3.2.2 critical process process new to an individual company or nonverified for the application in question or has caused problems during previous use that remain unresolved

3.2.3 critical material material that is new to an individual company or nonvalidated for the particular application and environment, or that has caused problems during previous use that remain unresolved

3.2.4 mechanical partpiece of hardware which is not electrical, electronic or electromechanical, and which performs a simple elementary function or part of a function in such a way that it can be evaluated as a whole against expected requirements of performance and cannot be disassembled without destroying this capability

3.2.5 partmechanical part (see 3.1)

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3.2.6 process set of interrelated resources and activities which transforms a material or semifinished product into a semifinished product or final product

3.2.7 request for approval (RFA) document with which the supplier or user asks the competent body for permission to use a critical material, part or process

3.2.8 special process process where quality cannot be completely ensured by visual inspection of the end article only

3.3 Abbreviated termsFor the purpose of this Standard, the abbreviated terms from ECSS-S-ST-00-01 and the following apply:

Abbreviation

Meaning

AA Aluminium AssociationAOCS attitude and orbit control systemATOX atomic oxygenAISI American Iron and Steel InstituteCDA Copper Development AssociationCDR critical design reviewCFRP carbon fibre reinforced polymerCI configuration item number (as per project

definition)DML declared material listDMPL declared mechanical part listDPL declared process listDRD document requirements definitionEEE electrical, electronic and electromechanicalESA European Space AgencyESMDB European Space Materials DatabaseGOX gaseous oxygenGSE ground support equipmentLEO low Earth orbitLOX liquid oxygenMAPTIS Materials and Processes Technical

Information System MIP mandatory inspection pointMMPP Materials, mechanical parts and processesMMPDS Metallic Materials Properties Development and

Standardisation

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Abbreviation

Meaning

MPCB Material, Mechanical Parts and Processes Control Board

NASA National Aeronautics and Space AdministrationNCR nonconformance reportNRB nonconformance review boardPA product assurancePDR preliminary design reviewPID process identification documentPMP parts, materials, processesQR qualification reviewQRR qualification review reportRFA request for approvalRFD request for deviationSCC stresscorrosion cracking

3.4 NomenclatureThe following nomenclature applies throughout this document:a. The word “shall” is used in this Standard to express

requirements. All the requirements are expressed with the word “shall”.

b. The word “should” is used in this Standard to express recommendations. All the recommendations are expressed with the word “should”.

NOTE It is expected that, during tailoring, recommendations in this document are either converted into requirements or tailored out.

c. The words “may” and “need not” are used in this Standard to express positive and negative permissions, respectively. All the positive permissions are expressed with the word “may”. All the negative permissions are expressed with the words “need not”.

d. The word “can” is used in this Standard to express capabilities or possibilities, and therefore, if not accompanied by one of the previous words, it implies descriptive text.

NOTE In ECSS “may” and “can” have completely different meanings: “may” is normative (permission), and “can” is descriptive.

e. The present and past tenses are used in this Standard to express statements of fact, and therefore they imply descriptive text.

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4General requirements

4.1 MMPP management requirements

4.1.1 OverviewThe general MMPP activity within the framework of a project is summarized in Figure 4-1.

4.1.2 MMPP plana. The supplier shall prepare, maintain and implement a MMPP

plan, as part of the overall PA plan in conformance towith DRD from Annex A of ECSS-Q-ST-10 and this Standard or as a separate document.

b. The MMPP plan shall be submitted to the customer for approval.

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Figure 4-1: Materials, mechanical parts and processes flow chart

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Figure 4-1: Materials, mechanical parts and processes flow chart (continued)

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Table 4-1: Steps to be taken to get approval for materials, mechanical parts and processes (MMPP)

Phase

Materials Mechanical parts ProcessesStep Comments

Step Comments

Step Comments

Critical Analysis

1 1 1

Evaluation (usually by test methods defined by ECSS standards)

2 Critical materials are tested, e.g. outgassing, SCC, flammability.

2 Mechanical parts are tested by, for example, vibration, thermal analysis, off-gassing and life test.

2 Critical processes are evaluated by testing “technology samples” including all, for example, electrical interconnection processes and painting, adhesive bonding, welding.

Verification Not applicable Not applicable 3 Verification tests usually defined in ECSS standards

Validation 3 Not applicable Not applicableQualification Not applicable 3 Not applicableApproval By RFA (Annex

D) or DMLBy RFA (Annex D) or DMPL/DPL

By RFA (Annex D) or DPL

NOTE 1 Project approval is always by means of the request for approval (RFA) form and the projects’ declared materials list (DML), declared mechanical parts list (DMPL) and declared processes list (DPL).

NOTE 2 The details for approvals of MMPP lists are contained in this Standard. NOTE 3 To summarize: Materials are validated.

Mechanical parts are qualified. Processes are verified.

In addition: Skills training schools are ESA-certified. Outside test or evaluation laboratories are certified by agency or company audits. Operators and inspectors for special and critical processes are trained, certified

and monitored.

4.1.3 Customer reviewsMMPP Manager and MPCB

c. << deleted >>d. << deleted >>e. The supplier shall appoint a MMPP manager.f. The MMPP Manager shall ensure that the Materials,

Mechanical Parts and Processes used to manufacture a spacecraft or a launcher satisfy both the ground and flight functional requirements and constraints of the project.

g. To obtain the validation status for materials and qualification status for parts and verification status for processes, the MMPP manager shall present to the customer activities which were performed in conformance with requirement 1.1.1f together with the results obtained.

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h. The MMPP manager shall organize Materials, Mechanical Parts and Processes Control Board (MPCB) at all suppliers with the task to review and approve the Materials, Mechanical Parts and Processes as specified in the Clauses 5, 6, and 7.

i. The MPCB activity shall start not later than at PDR.j. The MMPP Manager shall agree with the customer on the

MPCB’s activities at PDR.k. Minimum tasks of the MPCB shall be as follows:

1. Coordination of the initiation and approval of RFA’s in conformance with DRD from the Annex D by involving the relevant technical discipline.

2. Review and approval of test programme and related results.

3. Review of preliminary Declared Materials, Mechanical Parts and Processes Lists and of any available evidence to support the approval, by the PDR.

4. Review and approval of Declared Materials, Mechanical Parts and Processes Lists and of the evidence for the approval by the CDR.

5. Review and approval of any change to the approved Declared Materials, Mechanical Parts and Processes Lists.

4.2 Management and consolidation of the activities

4.2.1 OverviewThe relationship between materials and processes activities and programme phases is shown in Annex E.

4.2.2 Establishing and processing of listsl. Each supplier and subsupplier shall establish, collect, review

and deliver the declared materials, mechanical parts and processes lists including all the items intended for use in the flight equipment.

m. The lists specified in 1.1.1l shall reflect the current design at the time of issue.

n. These listsThe lists specified in 1.1.1l shall contain the materials, mechanical parts and processes used in the current design in order to: 1. demonstrate compliance with all requirements of the

programme;2. verify the results of equipment supplier activities;3. control and monitor the status of materials, mechanical

parts and processes in accordanceconformance with programme milestones.

NOTE See Annex F.o. The following constraints should apply:

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1. maximum use of the materials and processes describedspecified in approved data sources and items already approved on similar projects;

NOTE For approved data sources see for example ECSS-Q-ST-70-71.NOTE use of project related preferred lists, if available.NOTE For approved data sources see example of ESMDB database in the Annex A of the ECSS-Q-ST-70-71.

p. The following constraints shall be taken into accountassessed: 1. requirements originating from the initial technical

specification;.2. programmatic project requirements and conditions;.

q. An analysis of the criticality of these preliminary lists specified in the 1.1.1l shall be performed such that, after checking the conformity of the materials, mechanical parts and processes, against all the project requirements, allowallows them to be classified into three categories:1. Critical items, subject to evaluation, validation,

qualification, or verification programmes.2. Items that are not critical but which do not conform to

one or more project requirements (a justified deviation request should be drafted for this category)..

3. Noncritical items.r. For items classified as critical itemsin conformance with

1.1.1.11 a request for approval shall be submitted in conformance with Annex D.

s. For items classified as not critical but which are not in conformance with one or more project requirements in accordance with 1.1.1.12 a justified deviation request should be drafted.

4.2.3 Management of the listst. The supplier shall document all materials in the Declared

materials list in conformance with Annex A.u. The supplier shall document all mechanical parts in the

Declared mechanical parts list in conformance with Annex B.v. The supplier shall document all processes in the Declared

process list in conformance with Annex C.w. The supplier shall process the lists of lower level suppliers to

ensure exchangeabililty, traceability searchability, sortability, storability and retrievability for that set of lists, before submitting it to the customer.

x. These listsThe lists specified in the requirement 1.1.1t, 1.1.1u and 1.1.1v shall be updated during the course of the project.

y. The preliminary listsThe preliminary lists specified in the requirement 1.1.1t, 1.1.1u and 1.1.1v shall include the items from suppliers’ preliminary needs.

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NOTE They are used to identify critical items (available for the PDR).

z. The asdesigned lists shall include the items from the baselines various design files (, available for the CDR)..

aa. Any change after CDR or QR shall be reflected in the list and shall be in accordance with Figure 4-1 (Part 2).

NOTE 1 The MMPP manager is responsible within the programme to ensure that all the information needed is given and that the approval status is consistent with technical and scheduling objectives and data is exchangeable.NOTE 2 Where no project requirements exist for a separate DMPL, the mechanical parts can be entered into a separate section of the DML.NOTE 3 The materials of, for example, screws and nuts that are made up of a few materials can be listed in the DMPL. The materials (metals and plastics) of complex parts can be listed in the DML with, for example, outgassing, toxicity, flammability, corrosion and stress corrosion values and reference to the DMPL item.

bb. The supplier shall establish, collect, review and deliver the declared materials, mechanical parts and processes lists in an electronic format in conformance with Annex A, Annex B, and Annex C.

cc. The supplier shall demonstrate that the lists specified in the requirements 1.1.1t, 1.1.1u and 1.1.1v have been formally approved prior to their delivery to the customer.

4.2.4 Supplier role and responsibilitiesdd. The supplier shall perform the following tasks:

1. obtaining the correct and complete lists from lower level suppliers;

2. providing provisional and, later, definitive approval for each list;

3. submitting the project declared lists for approval prior to initiation of the hardware phase (, before critical design review).CDR.

ee. The lists establishedThe lists specified in the requirement bb by the suppliers shall include all the information described in this Standard.

ff. Amendments to the lists specified in the requirement 4.2.3 a, b and c shall be implemented only through established change procedures.

gg. The following documentation shall be delivered to the customer upon request:1. RFA (with reference and issue); in conformance with DRD

in Annex D;

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2. evaluation reports;3. deviation requests.

hh. The material, mechanical parts or process justification files shall be made available to the customer upon request either on the supplier site, or by any other process agreed by both parties.

NOTE For example, by non-disclosure agreement.

4.3 Technical constraintsii. PartsMechanical parts, and materials and processes shall

satisfy the mission’s functional requirements and constraints.jj. PartsMechanical parts, and materials and processes shall

satisfy both ground environment constraints and flight requirements and constraints.

NOTE Examples are: Ground environment constraints: manufacture, tests, storage, maintenance, transport and integration Flight constraints: launch and orbit.

kk. << deleted >>The technical criteria from clause 5.1 shall be taken into account, according to the mission.

ll. The estimated availability of the parts and products obtained from materials and processes used shall be compatible with the finalspace system’s life cycle(tests, storage and mission)..

NOTE Examples of space system’s life cycle are tests, storage and mission.

4.4 Cleanliness and contamination controlmm. The supplier shall establish and maintain a contamination and

cleanliness control programme including, as a minimum:1. cleaning procedures, and2. cleanliness monitoring procedures or methods.

nn. The risks of chemical or particle pollution generated by parts, materials or processes used shall be identified and reduced as specified in accordanceECSS-M-ST-80 clause 7.2, in conformance with mission requirements (cleanliness or contamination analysis)..

NOTE Cleanliness or contamination analysis is example of mission requirements.

oo. For cleanliness or contaminationcritical applications, a chemical and particle requirement specification (chemical and particle) and a specific cleanliness control plan and shall be established in conformance with DRDs from Annex A (CRS DRD) and Annex B (C&CCP DRD) of ECSS-Q-ST-70-01.

23


4.5 Safety hazardous mechanical parts and materialspp. PartsMechanical parts and materials with hazardous

characteristics shall be identified, managed and processed in conformance with requirements from clause 5 to clause 8 of ECSS-Q-ST-40.

4.6 Optical, mechanical or electrical GSE hardwareqq. When optical, mechanical or electrical GSE materials are used

in thermal vacuum or interfacing with flight hardware, possible degradation shall be taken into accountassessed.

NOTE For example, contamination, surface degradation, electromechanical and chemical effects.

4.7 Selection of space materials and processesrr. For the selection of space materials and processes, ECSS-Q-ST-

70-71 shall be applied.

24


5Materials control

5.1 Technical criteria for selection of materials

5.1.1 OverviewGeneralss. Material design data shall be generated for the intended

service conditions using test and analysis procedures approved by the customer.

tt. Material properties shall be compatible with the environments to which they are exposed during terrestrial testing prior to launch, and during the mission.

NOTE The following requirements of clause 5 apply when the environmental conditions of the mission require their application. The specific requirements, test methods and acceptacceptance or rejectrejection criteria are presented in the ECSS-Q-ST-70 series of documents.

5.1.2 Temperatureuu. Material properties shall be compatible with the thermal

environment to which they are exposed.NOTE Examples of thermal environment are also the passage through transition temperatures, e.g. phase transitions, ductile-brittle transition temperatures for metals, glass transition (Tg) for polymer materials, and environmental factors which affect these properties, such as moisture.

5.1.3 Thermal cycling and thermo opticalvv. Materials subject to thermal cycling shall be assessed for their

ability to withstand induced thermal stress.ww. The following materials shall be tested in conformance with

requirements from clause 5 of ECSS-Q-ST-70-04:1. Materials susceptible to thermal vacuum effect.

25


NOTE For a non-exhaustive list of such materials, see ECSS-Q-ST-70-04 Clause 1.NOTE Materials of unknown characteristics in respect to thermal vacuum.NOTE For a non-exhaustive list of materials specified in the requirement 1.1.1.11, see ECSS-Q-ST-70-04 Clause 1.

xx. Materials subject to thermal cycling other than those covered byexcept the case specified in the requirement 1.1.1ww, shall be tested in accordanceconformance with a procedure approved by the customer.

yy. Thermo optical properties shall be evaluated in conformance with requirement from clause 4 of ECSS-Q-ST-70-09.

zz. Directional effects due to manufacturing or processing shall be evaluated via dedicated testing to be agreed with the customer.

5.1.4 Vacuumaaa. << deleted >>Materials selection shall be made in

conformance with ECSS-Q-ST-70-71.bbb. Outgassing screening tests shall be carried out in conformance

with requirements from clause 5 of ECSS-Q-ST-70-02. NOTE The screening process applied depends on the application

ccc. All organic materials for use in space systems shall be evaluated to determine their outgassing characteristics.

ddd. The need for retest outgassing characteristics of materials used for an extended period of time at a temperature higher than 50 C should be mutually agreed with the customer.

NOTE When dynamic outgassing tests are required see ECSS-Q-TM-70-52.

5.1.5 Offgassing and toxicityeee. Spacecraft and associated equipment shall be manufactured

from materials and by processes that do not cause a hazard to personnel or hardware, whethereither on the ground or in space.

fff. Requirements from clause 4 of ECSS-Q-ST-70-29 shall apply for the characterization of offgassing products.

NOTE MAPTIS and MIL-HDBK-454 test method is not space relevant.

ggg. For materials for the use in manned compartments of a spacecraft or space segment elements, offgassing and toxicity analysis shall be performed.

hhh. The levels of offgassing and toxicity specified in the requirement 1.1.1ggg shall be agreed with the customer.

26


5.1.6 Flammabilityiii. The materials flammability resistance, shall be evaluated in

conformance with requirements from the clause 5 of ECSS-Q-ST-70-21 for the most hazardous environment envisaged for their use., and be applicable to:1. unmanned spacecraft or space segment elements

launched by a manned space transportation system when powered on launch, and

2. manned spacecraft and space segment elements.NOTE For NASA STS payloads See also NASA STD-6001.

5.1.7 Radiationjjj. Materials used on the spacecraft external surfaces exposed to

radiation shall be assessed in conformance with requirements from clause 5 of ECSS-Q-ST-70-06 in order to determine their resistance to the radiation dosage expected during the mission.

kkk. Evaluation of materials resistance to radiation shall include the combined effects of particle radiation and ultraviolet radiation in the normal space environment, along with any mission-specific radiation levels.

lll. The effect of bleaching due to vacuum or air recovery shall be evaluated, in case ex-situ measurements are performed.

mmm. In case synergistic testing is not possible it shall be proven that synergistic effects caused by radiation and temperature are not degrading the materials properties.

nnn. In case technical limits prevent the synergistic testing approach, it shall be so justified, and the justification for sequential testing shall be provided.

NOTE For example when different acceleration factors are required for particle and UV radiation.

5.1.8 Electrical charge and dischargeooo. External surfaces of the spacecraft shall be sufficiently

conductive, interconnected and grounded to the spacecraft structure to avoid the buildup of differential charges in conformance with requirements from clause 6 to clause 10 of ECSS-E-ST-20-06.

5.1.9 Corrosionppp. For all materials that come into contact with atmospheric

gases, cleaning fluids or other chemicals, it shall be demonstrated that the degradation of properties during their anticipated servicelife is acceptable in terms ofdoes not prevent to meet the performance and integrity requirements.

qqq. All mechanical parts, assemblies and equipment, including spares, shall be finished to provide protection from corrosion.

27


NOTE This applies equally to fasteners and other fixing devices, such as insert systems.

5.1.10 Stresscorrosionrrr. Materials used for structural and load bearing applications (i.e.

subject to tensile stress) shall be chosenselected in conformanceaccordance with requirements of clauses 5.2.1, 5.2.3 and 5.2.4 of ECSS-Q-ST-70-36.

sss. Any material not covered by standard ECSS-Q-ST-70-36cases specified in requirement 1.1.1rrr shall be tested in conformance with requirements from clause 5 of ECSS-Q-ST-70-37.

5.1.11 Fluid compatibilityttt. Materials within the system exposed to liquid oxygen (LOX),

gaseous oxygen (GOX) or other reactive fluids, both directly and as a result of single point failures when failure propagation effects cause hazardous operation of interfacing hardware shall be compatible with that fluid in their application.

NOTE Example of reactive fluids are liquid oxygen (LOX) and gaseous oxygen (GOX).

uuu. << deleted >>The possibility of hydrogen embrittlement occurring during component manufacture or use shall be assessed, and an material evaluation be undertaken, including the assessment of adequate protection and control.

vvv. The compatibility of materials which are or can come into contact with LOX or GOX shall be evaluated except the case specified in the requirement 1.1.1www.

NOTE See NASA-STD-6001 Tests No. 13 and No. 14.

www. In case no compatibility data are available, tests shall be performed for reactive fluids other than oxygen.

NOTE See NASA-STD-6001 Test No. 15.

5.1.12 Galvanic compatibilityxxx. When bimetallic contacts are used, the choice of the pair of

metallic materials used shall be agreed with the customer. NOTE This also includes metalto-conductive fibrereinforced materials contacts.

yyy. Galvanic compatibilities shall be selected in conformance with Table 5-2.

zzz. Materials not listed in Table 5-2 shall be evaluated in a flight-simulated configuration using an accelerated environment to be agreed by the customer.

28


5.1.13 Atomic oxygenaaaa.All materials considered for use on the external surfaces of

spacecraft intended for use in Low Earth Orbit (LEO) altitudes (, between 200 km and 700 km), shall be evaluated for their resistance to atomic oxygen (ATOX).

NOTE The flux level varies with altitude, velocity vector and solar activity. Fluence levels vary with the duration of exposure.

bbbb. Test procedures shall be subject to the approval ofby the customer.

cccc. The effect of ATOX on thermo optical properties including specularity shall be evaluated.

NOTE Data related to ATOX are presented in ECSS-E-ST-10-04.

5.1.14 Micrometeoroids and debrisdddd. The effect of impacts by micrometeoroids and debris on

materials shall be reviewed and assessed on a case by case basis, and.

eeee. their useUse of materials shall comply with safety evaluation and assessment results concerning design and application criteria or details.

ffff. Micrometeoroids and debris analysis and test procedures shall be subject to the approval by the customer.

5.1.15 Moisture absorption and desorptiongggg. Precautions shall be taken to avoid moistureMoisture

absorption shall be prevented during manufacture and storage of CFRPtypehygroscopic materials in conformance with ECSS-Q-ST-70-01 and ECSS-Q-ST-70-22..

29


Table 5-2 Compatible couples for bimetallic contactsPure metals and alloys in alphabetical order (including carbon)

Alum

iniu

mC

oppe

r al

loys

Al (p

ure)

, AlZ

inc

allo

ys

Cad

miu

m

Cas

t iro

n (a

uste

nic)

Chr

omiu

m

Cop

per,

Bra

sses

Cup

roN

icke

l, Al

bron

zes,

Si-

bron

zes

Gol

d, P

latin

um, C

arbo

n,

Rho

dium

Gun

met

al (C

uZn1

0 al

loy)

, P-

bron

zes,

Snb

ronz

es

Mag

nesi

um

Nic

kel,

Mon

el, I

ncon

el,

Nic

kel/M

olyb

denu

mal

loys

Silv

er

SnPb

allo

ys (a

ll), T

in, L

ead

Stai

nles

s st

eel 1

8/8

(300

ser

ies)

Stai

nles

s st

eel 1

3Cr

(400

ser

ies)

Stee

l (ca

rbon

, low

allo

y), C

ast

iron

Tita

nium

and

Tia

lloys

Zinc

, Ber

ylliu

m

AluminiumCopper alloys 1 1 3 3 3 3 3 3 2 2 3 1 2 2 3 2 2Al (pure)AlZinc alloys

1 3 3 3 3 3 3 2 3 3 2 3 3 3 3 2

Cadmium 2 2 2 2 2 2 1 2 2 0 1 1 2 2 2Cast iron (austenic) 1 1 1 2 1 3 1 2 1 1 1 2 1 3Chromium 1 0 0 1 3 1 0 2 0 0 2 0 3Copper, Brasses 0 2 0 3 1 1 2 1 1 3 0 3CuproNickelAlbronzesSibronzes

2 0 3 1 1 2 2 1 3 0 3

GoldPlatinum, CarbonRhodium

2 3 2 0 3 0 1 3 0 3

Gunmetal(CuZn10 alloy)PbronzesSnbronzes

3 1 1 1 0 0 3 0 3

Magnesium 3 3 2 3 3 3 3 3NickelMonelInconelNickel/Molybdenum-alloys

2 2 1 0 2 1 3

Silver 3 0 0 3 0 3SnPb alloys (all)Tin, Lead

1 1 1 3 1

Stainless steel 18/8(300 series)

1 3 0 3

Stainless steel 13Cr(400 series)

3 0 3

Steel (carbon, low alloy)Cast iron

0 3

Titanium and Tialloys 3ZincBeryllium

Key:0 - Can be used without restriction.1 - Can be used in a noncontrolled environment (e.g. assembly area and general nonclean room environment).2 - Can be used in a clean room environment.3 - Needs specific measures to avoid galvanic corrosion when these combinations are selected.

30


5.1.16 Mechanical contact surface effects (: cold welding, fretting, wear)

hhhh. For all solid surfaces in moving contact with other solid surfaces, it shall be demonstrated that the degradation of surface properties over the complete mission is acceptable from adoes not prevent to meet the performance point of viewrequirements.

iiii. For all solid surfaces, moving or in static contact with other solid surfaces, and intended to be separated it shall be demonstrated that the increase in separation force during the physical contact does not exceed the specified limit.

5.1.17 Lifejjjj. Materials shall be selected to ensure sufficient life with respect

to the intended applicationthat they will meet the material performance requirements during all their specified lifetime. .

5.1.18 Bacterial and fungus growthkkkk. Materials selected for manned or fluid systems shall:

1. not support bacterial or fungus growth,2. be sterilizable.

llll. The extent of the degradation by the sterilization process shall be determined to define margins for design implementation.

mmmm. The design and qualification of an equipment to be sterilised shall implement the defined margins for sterilisation degradation.

nnnn. The level of bacterial growth and fungus contamination shall be determined on the assembled hardware.

oooo. Evaluation of organic materials used in the pressurized environment of long-term, manned spacecraft shall be performed prior to selection and verification.

5.1.19 Hydrogen embrittlementpppp. The possibility of hydrogen embrittlement occurring during

component manufacture or use shall be assessed. qqqq. The material evaluation specified in 1.1.1pppp shall be

performed including the assessment of a protection and control.

rrrr. Based on the assessment specified in the requirement 1.1.1pppp and 1.1.1qqqq, protection and control measures shall be implemented to avoid hydrogen embrittlement during both mechanical parts manufacturing and use.

NOTE Hydrogen embrittlement can be introduced for example during e.g. plating, welding.

ssss. Mechanical parts subject to fatigue or sustained loading stresses, which are made of material susceptible to hydrogen embrittlement, shall be heat treated after coating.

31


5.2 Selection

5.2.1 Generaltttt. Materials shall be chosen giving preference to the followingas

follows:1. those successfully used forif an identical application in

other space programmes similar with respect to environment constraints and lifetime to the proposed application; exist, use materials used in such an application;

2. thoseotherwise:(a) if materials exist for which satisfactory evaluation

results are obtained on samples representative of the application with a sufficient margin above the specified ones as regards conditions of use, use such materials;

(b) those otherwise, use materials included in approved data sources.

NOTE For example: ESMDB (see Annex A of ECSS-Q-ST-70-71,) ESA and NASA data banks.

uuuu. Whether the materials are already validated or remain to be validated, their selection shall take into accountensure that the following criteria are met:1. continuity of supply;2. reproducibility of characteristics;3. mechanical properties of materials processed according

to a specified technique;4. environmental-stability properties under space conditions,

together with mission- or application-specific requirements.

vvvv. Each critical material shall be validated for the specific application.

NOTE Critical material includes the ones of approved data sources.

wwww. Space-proven materials with heritage covering the specific mission requirements shall be selected at the earliest design stage.

xxxx. The supplier shall be responsible for the selection of materials that are capable of meeting the requirements of his business agreement.

yyyy. The supplier shall be responsible for storing and maintain all materials data in an internal database.

zzzz. The access to the data, specified in requirement 1.1.1yyyy, shall be granted to the customer.

aaaaa. To achieve high reliability and good performance, the use of a material shall be restricted to within its maximum qualified range of physical and mechanical properties.

32


bbbbb. All test methods and inspection techniques used to verify material characteristics and final products shall conform to standards approved by the customer.

ccccc. All test methods and inspection techniques specified in the requirement 1.1.1bbbbb shall not be used before approval by the customer.

5.2.2 Constraintsddddd. Pure tin finish with more than 97 % purity shall not be used.

NOTE This is due to the possibility of whisker growth and transformation to grey tin powder at low temperatures.

eeeee. The incoming inspection of each EEE component batch shall include the verification of the termination composition (to avoid assembly of pure tin finish)..

fffff. Cadmium and Zinc shall not be used as raw material or surface treatment for flight hardware.

ggggg. Cadmium and Zinc shall not be used for ground support equipment exposed to vacuum or when in contact with the flight hardware.

NOTE For example during thermal vacuum testing phases on ground.

hhhhh. The incoming inspection of each non-EEE component batch shall include the verification of the metallic surface treatment to avoid assembly of pure tin, cadmium or zinc finish.

iiiii. The materials presented in the following shall not be used: 1. Beryllium oxide2. Mercury and its compounds3. Polyvinyl chloride (PVC)4. Radioactive material

NOTE This list is not exhaustive.jjjjj. Beryllium shall not be used for structures.kkkkk. Beryllium shall not be used in applications other than

structures, unless:1. approved by the customer , and 2. all safety requirements are implemented by the supplier.

5.3 Declared materials list (DML) lllll. The supplier shall establish and maintain a declared materials

list in conformance with Annex A.

33


5.4 Criticality analysis

5.4.1 OverviewTo conform to mission requirements, the objective of the analysis is to identify whether further data are required.

5.4.2 Requirementsmmmmm. The supplier shall analyse all the materials contained

in his preliminary lists with respect to criticality and in correlation with the risk analysis performed.

nnnnn. Any material not meeting the project requirements shall be subject to a RFD to be submitted to the nextfor customer approval.

ooooo. Any critical material shall be subject to a RFA in conformance with Annex D to be submitted to the customer.

ppppp. << deleted >>For any material not meeting the project requirements the supplier shall submit a RFA in conformance with Annex D.

NOTE Any material when specifically required, marking inks can be excluded.

5.5 Evaluation and validation phases

5.5.1 Generalqqqqq. Depending on the results ofIf so identified by the criticality

analysis, the supplier shall perform an evaluation phase before the validation phase for all critical materials with unknown characteristics (new materials) or with major changes in the use or in the configuration

rrrrr. In case of an extension of an existing application, the evaluation indicatedspecified in requirement 1.1.1qqqqq need not be performed if so agreed with the customer.

sssss. Guarantied characteristics of materials and material supplier inspection methods, together with associated documents, shall be available for review at the supplier’s premises before the start of evaluation or qualification phases.

5.5.2 Evaluation phasettttt. The evaluation specified in 1.1.1qqqqq shall considerassess as

a minimum the following as a minimum:1. the limits of use;2. the materials physical, chemical or functional

characteristics along with their values and tolerances;

34


3. behavioural tendencies and degradation processes depending on environmental parameters (including sensitivity to pollution);;

4. acceptance criteria.uuuuu. When evaluation is performed, the supplier shall provide:

1. an evaluation programme (available at PDR, according to Figure 4-1) shall be drawn up, implemented and

2. an evaluation report (available before CDR, according to Figure 4-1.

NOTE See Figure 4-1 and Table 4-1) shall be drawn up.

5.5.3 Validation phasevvvvv. For all critical materials, a validation programme (,

available at PDR), shall be drawn up by the supplier and then implemented to check or confirm that the materials satisfy the mission requirements with appropriatethe specified margins as necessary to obtain validation status.

wwwww. Validation status shall depend on be decided at CDR in view of the available results obtained (written in validation report), and the review of corresponding documentation (available at CDR)..

xxxxx. The validation programme and report shall be approved by the customer.

5.5.4 Approval phaseyyyyy. The material shall not receive an approval identification in

the declared material list for the project unless the requirements inspecified in the clauses 5.5.2 and 5.5.3 are satisfied.

zzzzz. If approval is not granted, the supplier in charge of the item shall either:1. select another material, or2. propose a modified evaluation programme and resubmit

for approval, or3. if actions specified in the requirements 1.1.1.11 and

1.1.1.12 fail to achieve positive results, initiate a deviation procedure.

5.5.5 Deviation requestaaaaaa. For materials not conforming to project requirements,

whether at the end of criticality analysis or of evaluation and validation tests, the supplier shall submit a request for deviation in conformance with requirements from the clause 5.2.3.5 of ECSS-Q-ST-10-09.

35


5.6 Procurement of materials

5.6.1 Procurement specificationsbbbbbb. All materials shall be procured to an internationally or

nationally recognized specification approved by the supplier quality system, or an inhouse fully configured procurement specification which defines the materials properties, the materials requirements, the test methods, the acceptance criteria for the specific applications, source inspection (if any) and material supplier inspection.

cccccc. Where material suppliers do not accept specifications and procurement is by means of a datasheet the supplier shall introduce internal, inhouse receipt inspection to ensure that the validation status of the material is maintained during the subsequent procurements.

dddddd. Materials with long lead times or long procurement delays (, versus the project schedule), shall be identified before the formal subsystem PDR.

eeeeee. Procurement shall be thoroughly planned, documented and implemented in a timely manner to obtain reliable product assurance provision at CDR.

ffffff. Backup plans shall be prepared and initiated whenever there is evidence of delays or technical problems.

gggggg. The material requirements shall be explicitly accepted by the material supplier or manufacturer.

5.6.2 Incoming inspection procedurehhhhhh. All materials shall be submitted to an incoming inspection.iiiiii. An incoming inspection procedure shall define the inspections

and tests to be carried out, particularly for materials that are known to be variable in their final properties.

5.7 Use of materials

5.7.1 Validation status of materialsjjjjjj. The supplier shall verify that all critical materials are validated

before being used in the manufacture of qualification or flight products.

kkkkkk. Any modification, change of condition or configuration of application shall lead to a re-evaluation in conformance with the process shown in Figure 4-1.

5.7.2 Traceability of materialsllllll. The supplier shall apply the traceability rules defined

inspecified in the requirements from clause 5.2.5 of ECSS-Q-ST-20 to all materials.

36


mmmmmm. Materials shouldshall be identified by a unique reference number, code or a lot number to provide traceability should there be an incident or nonconformance, or a need for a technical investigation following failure or damage, to reconstruct the materials history, either individually (individual traceability) or by the manufacturing lot of which it was a part (lot traceability).

5.7.3 Packaging, storage, removal from storagennnnnn. The supplier shall define provisions for packaging, storage

and removal from storage for materials.oooooo. Measurements and inspections used to guarantee the

material integrity and monitoring during storage and removal from storage shall be identified.

5.7.4 Limitedlife materials before implementationpppppp. The supplier shall ensure that all materials which have

limitedlife characteristics have their date of manufacture (when available, otherwiseor date of delivery) and shelflife expiry date accurately identified and clearly marked on each lot or batch.

qqqqqq. Materials which have exceeded their shelflife expiry date mayshall not be recertified only afteruntil the physical and chemical characteristics are inspected and the parameters, subject to deterioration, are evaluated for continued acceptability according to the acceptacceptance and rejectrejection criteria in conformance with requirements from the clause 4 of ECSS-Q-ST-70-22.

5.7.5 Limitedlife materials after implementationrrrrrr. Materials with limitedlife after implementation (such as

propellant) shall be identified and controlled in conformance with requirements from the clause 5 of ECSS-Q-ST-10-04.

NOTE 1 Propellant is an example of material with limited-life after implementationNOTE 2 Storage and mission life are criteria for the assessment and control of those materials.

5.7.6 Materials nonconformances and alertsssssss. Nonconformances and alerts shall be managed in

conformance with requirements from the clause 5 and clause 6 of ECSS-Q-ST-10-09 and clause 5.2 of ECSS-Q-ST-10.

5.7.7 Health and safetytttttt.Material safety data sheet or equivalent shall be available for

all materials.

37


6Mechanical parts control

6.1 Selection of mechanical partsuuuuuu. The supplier shall verify that all materials and processes

used in the manufacture of mechanical parts satisfy the mission technical requirements.

6.2 Selectionvvvvvv. Mechanical parts shall be chosen from those successfully

used for an identical application in other space programmes similar with respect to environment constraints and lifetime whenever those parts exist.

wwwwww. Type reduction actions shall be implemented at all levels of the programme.

xxxxxx. Whether the mechanical parts are already qualified or remain to be qualified, their selection shall take into accountensure that the following criteria are met:1. durability of supply;2. reproducibility of characteristics.

yyyyyy. The supplier shall be responsible for storing and maintain all mechanical parts data in an internal database.

zzzzzz. The access to the data, specified in requirement 1.1.1yyyyyy, shall be granted to the customer.

6.3 Declared mechanical parts list (DMPL) aaaaaaa. The supplier shall establish and maintain a declared

mechanical parts list in conformance with Annex B.

38



6.4.1 OverviewTo conform to mission requirements, the objective of the analysis is to identify whether further data are required.

6.4.2 Requirementsbbbbbbb. The supplier shall analyse all the mechanical parts

contained in their preliminary lists with respect to criticality and in correlation with the risk analyses performed in conformance with requirements from the clause 5 of ECSS-Q-ST-10-04.

ccccccc. Critical parts shall be identified in the DMPL and included in the critical items list.

ddddddd. Any critical part shall be the subject of a RFA in conformance with Annex D submitted to customer approval.

6.5 Evaluation and qualification phases

6.5.1 Generaleeeeeee.If so identified byDepending on the results of the criticality

analysis, the supplier shall perform an evaluation phase before the validationqualification phase for all critical parts with unknown characteristics or with major changes in the use or in the configuration.

fffffff.In case of an extension of an existing application, the evaluation indicated in 1.1.1eeeeeee need not be performed if so agreed with the customer.

ggggggg. Guarantied characteristics of materials and material supplier inspection methods, together with associated documents, shall be available for review at the suppliers premises before the start of evaluation or qualification phases.

NOTE Refer to Table 4-1 for an explanation of the steps involved.

6.5.2 Evaluation phasehhhhhhh. The evaluation specified in 1.1.1eeeeeee shall

considerinclude the following, as a minimum, for each critical part:1. the limits of use,2. the part’s physical or functional characteristics, along

with its values and tolerances,3. behavioural tendencies and degradation processes

depending on environment parameters (, including sensitivity to pollution),, and

4. acceptance criteria.

39


iiiiiii. When an evaluation is performed the supplier shall provide:1. an evaluation programme (available at PDR) shall be

drawn up, implemented, and 2. an evaluation report (available before CDR) shall be

drawn up.jjjjjjj. The behaviour of the parameters to be monitored which were

also recorded during the evaluation programme tests, shall serve as a reference for the analysis of qualification test results.

NOTE Example of such behaviour is variation and change over time.

6.5.3 Qualification phasekkkkkkk. For each critical part a qualification programme shall

be drawn up by the supplier (of the equipment using the critical part) and then implemented to check or confirm whether the parts satisfy mission requirements with appropriatethe specified margins.

lllllll. Qualification status shall depend on be decided at CDR in view of the available results obtained (, written in qualification report), and the reviews of corresponding documentation (available at CDR).

mmmmmmm. The qualification programme and report shall be submitted to the customer for approval.

6.5.4 Approval phasennnnnnn. The mechanical parts shall not receive an approval

identification in the declared mechanical parts list for the project unless the requirements infrom clauses 6.5.2 and 6.5.3 are satisfied.

ooooooo. If approval is not granted, the supplier in charge of the item shall either:1. select another mechanical part, or2. propose a modified evaluation programme and resubmit

for approval, or3. if actions specified in the requirements 1.1.1.11 and

1.1.1.12 fail to achieve positive results, initiate a deviation procedure.

6.5.5 Deviation requestppppppp. For mechanical parts not conforming to project

requirements, whether at the end of criticality analysis or of evaluation and qualification tests, the supplier shall submit a request for deviation in conformance with requirements from the clause 5.2.3.5 of ECSS-Q-ST-10-09.

40


6.6 Procurement of mechanical parts

6.6.1 Generalqqqqqqq. Mechanical parts with long lead times or

procurement delays (, versus the project schedule), shall be identified before the subsystem PDR.

rrrrrrr. Procurement shall be planned, documented and implemented in a timely manner to obtain reliable product assurance provision at CDR.

sssssss. Backup plans shall be prepared and initiated whenever there is evidence of possible delays or technical problems.

6.6.2 Procurement specificationttttttt. Each part shall be covered by a procurement specification

or a standard approved by the supplier quality system.uuuuuuu. The procurement specifications shall define the part

characteristics, requirements, tests methods, acceptance criteria, lot acceptance testing, source inspection (if any) and material supplier inspection.

vvvvvvv. The procurement specifications shall be explicitly accepted by the mechanical part supplier or manufacturer.

6.6.3 Source inspectionwwwwwww. For complex mechanical parts related to a specific

project development, each supplier shall define the nature and frequency of their own source inspection points.

xxxxxxx. Source inspection shall be carried out by the customer on the premises of the supplier (, mechanical part manufacturer), in conformance with requirements from the clauses 5.4.3 and 5.4.4 of ECSS-Q-ST-20.

6.6.4 Incoming inspection procedureyyyyyyy. Each part or batch of mechanical parts shall be submitted to

an incoming inspection.zzzzzzz. An incoming inspection procedure shall be established

defining the inspections and tests to be carried out.

6.7 Use of mechanical parts

6.7.1 Qualification status of mechanical partsaaaaaaaa. The supplier shall ensure that all critical parts are

qualified before being used in the manufacture of qualification or flight products.

41


bbbbbbbb. Any modification, change in condition or configuration of application shall lead to a re-evaluation in conformance with the process shown in Figure 4-1.

6.7.2 Traceability of mechanical partscccccccc. The supplier shall apply the traceability rules

definedspecified in clause 5.2.5 of ECSS-Q-ST-20 to his mechanical parts.

dddddddd. Parts shouldshall be identified by a unique reference number or code and a lot number to provide traceability - where there is an incident or nonconformance, or for the purposes of technical investigations following failure or damage - to reconstruct the mechanical parts history, either individually (individual traceability) or by the manufacturing lot it was part of (lot traceability).

6.7.3 Packaging, storage, removal from storageeeeeeeee. The supplier shall define provisions for packaging,

storage and removal from storage for mechanical parts.ffffffff. Measurements and inspections used to guarantee the part

integrity and monitoring during storage and removal from storage shall be identified.

6.7.4 Limitedlife mechanical parts or parts subject to wearout

gggggggg. Limitedlife mechanical parts after implementation or subject to wear out shall be identified and controlled, taking into accountincluding storage and mission life.

NOTE Examples of such mechanical parts are mechanisms, pyro initiators and Orings.

hhhhhhhh. Limitedlife mechanical parts shall be assessed as candidates to the critical items list in conformance with requirements from clause 5 of ECSS-Q-ST-10-04.

6.7.5 Mechanical parts nonconformances and alerts

iiiiiiii. Management of mechanical parts nonconformances and alerts shall be in conformance with requirements from clause 5 to clause 6 of ECSS-Q-ST-10-09 and clause 5.2 of ECSS-Q-ST-10.

42


7Process control

7.1 Specifications or proceduresjjjjjjjj.Each process to be used in the manufacturing or assembly of a

product shall be identified by a specification or procedure.kkkkkkkk. Reference shall be made to accept and reject criteria.

7.2 << deleted >>Associated materials and mechanical parts

llllllll. << deleted >>The supplier shall verify that the materials and the mechanical parts used during the implementation of processes satisfy the requirements of this Standard.

7.3 SelectionProcess selection and trainingmmmmmmmm. Processes shall be chosen from those already verified

processes according to the following order of preference and priority:1. thoseprocesses covered by space agencies or other

governmental organization certification for identical conditions of use;

2. thoseprocesses for which satisfactory evaluation and verification results are obtained on samples representative of the application with a sufficient margin as regards conditions of use;

3. thoseprocesses already successfully used by the same supplier for other space programmes in the same conditions of use.

nnnnnnnn. Whether the processes are already verified or remain to be verified, their selection shall take into accountensure that the following criteria are met:1. reliability;2. inspectability;3. reworkability of the process item;4. reproducibility.

43


oooooooo. The supplier shall store and maintain all processes data in an internal database.

pppppppp. The access to the data, from requirement 1.1.1oooooooo, shall be granted to the customer.

qqqqqqqq. Processes using limited-life materials shall be in conformance with the requirements from clause 4 of ECSS-Q-ST-70-22.

rrrrrrrr. Operators shall be trained for all processes.ssssssss. Operators performing special processes shall be certified in

conformance with the requirements of the relevant standard.tttttttt. Inspectors shall be trained and certified for all processes.uuuuuuuu. Certification shall be reassessed at least every two

years.vvvvvvvv. All training and certification shall only be performed

at a school or by certified instructors in conformance with customer requirements.

wwwwwwww. Retraining and recertification of operators shall be applied in the event of a new process, modification to an existing process or a change of the equipment used.

xxxxxxxx. Retraining and recertification of inspectors shall be applied in the event of a new inspection procedure, modification to an existing inspection procedure or a change of an existing one.

yyyyyyyy. In the case of a process suspension for four months continuously, retraining and recertification shall be performed.

zzzzzzzz. Standards relating to the occupational health of operators working with processes resulting in exposure to vapours, dust or debris shall be implemented and controlled.

7.4 Declared processes list (DPL) aaaaaaaaa. The supplier shall establish and maintain a declared

processes list in conformance with Annex C.


7.5.1 OverviewTo conform to mission requirements, the objective of the analysis is to identify whether further data is required.

7.5.2 Requirementsbbbbbbbbb. The supplier shall analyse all the processes

contained in their preliminary lists with respect to criticality and in correlation with the risk analyses performed.

ccccccccc. Critical processes shall be identified in the DPL and included in the list of critical items.

44


ddddddddd. Any critical process shall be the subject of an RFA in conformance with Annex D submitted to customer approval.

eeeeeeeee. Special processes shall be identified and controlled.fffffffff. Process control shall be ensured by means of procedures or

personnel certification or inline process controlavailable for customer review.

NOTE Best practice is to implement a statistical process control.

ggggggggg. << deleted >>Whenever feasiblea statistical process may be carried out

7.6 Evaluation and verification phase

7.6.1 Generalhhhhhhhhh. Depending on the results ofIf so identified by the

criticality analysis, the supplier shall perform an evaluation phase before the validationverification phase for all critical processes which are new or with major changes in the use or in the configuration.

iiiiiiiii. In case of an extension of an existing application, the evaluation indicatedspecified in requirement 1.1.1hhhhhhhhh need not be performed if so agreed with the customer.

jjjjjjjjj. For confidential processes, the supplier shall prove that the process has been verified.

NOTE 1 For example, by presenting a verification certificate from space agencies or other governmental organization responsible to check the applicability of this verification.NOTE 2 Refer to Table 4-1 for an explanation of the steps involved.

7.6.2 Evaluation phasekkkkkkkkk. The evaluation specified in 1.1.1hhhhhhhhh shall

considerinclude the following as a minimum for each critical process:1. the limits of use,2. the values, determined by test samples or technology

samples, of relevant parameters and their tolerances, and3. acceptance criteria.

lllllllll. When an evaluation is performed, the supplier shall provide 1. an evaluation plan at PDR, and2. an evaluation report before CDR.

45


7.6.3 Verification phasemmmmmmmmm. For each critical process, the supplier shall

implement a verification programme.nnnnnnnnn. The verification programme shall be defined in

conformance with existing ECSS-E-ST-10-02 or national agency standards of verification.

ooooooooo. The supplier shall ensure that the processes satisfy the mission requirements and that the parameters needed for the product design are defined so as to obtain verification status.

ppppppppp. Verification status shall depend on the be decided at CDR in view of the available results obtained (, written in verification report), and the review of corresponding documentation (available at CDR).

qqqqqqqqq. The verification programme and report shall be approved by the customer.

7.6.4 Approval phaserrrrrrrrr. TheA processes shall not receive an approval

identification in the declared processes list unless requirements infrom clauses 7.6.2 and 7.6.3 are satisfied. If approval is not granted, the supplier in charge of the item shall either1. select other processes, or2. propose a modified evaluation programme and resubmit

for approval, or3. if actions 1.1.1.11 and 1.1.1.12 fail to achieve positive

results, initiate a deviation procedure.4. In case approval specified in the requirement

1.1.1rrrrrrrrr is not granted, the supplier in charge of the item shall either:

5. select other processes, or6. propose a modified evaluation programme and resubmit

for approval, or7. if actions specified in 1.1.1.15 and 1.1.1.16 fail to achieve

positive results, initiate a deviation procedure.

7.6.5 Deviation requestsssssssss. For processes not conforming to project

requirements, whether at the end of criticality analysis or of evaluation and verification tests, the supplier shall submit a request for deviation in conformance with requirements from clause 5.2.3.5 of ECSS-Q-ST-10-09.

46


7.7 Use of a process

7.7.1 Verification status of a processttttttttt. The supplier shall confirm that all critical processes have

been verified before being used in the manufacture of qualification or flight products.

uuuuuuuuu. Any modification, change of condition or configuration of application shall lead to a re-evaluation in conformance with the process shown in Figure 4-1..

NOTE See Figure 4-1.

7.7.2 Reverification of a processvvvvvvvvv. When a process needs to be reverified, a request for

approval (RFA) in conformance with DRD from Annex D shall be established and a reverification programme shall be implemented.

NOTE Any prolonged stoppage in manufacturing, any major change of the facilities or procedures or any transfer of production to another entity can invalidate partially or completely the initial verification of a process.

7.7.3 Implementation of a processwwwwwwwww.Before implementation of a process, the supplier

shall ensure that personnel are trained in accordance with the training and certification programme specified in 1.1.1rrrrrrrr, 1.1.1ssssssss and 1.1.1tttttttt and that environment, means and documentation are adequate.

xxxxxxxxx. This verification shall ensure that: 1. manufacturing and quality control tools associated with

the process are adequate, calibrated and properly maintained are used under appropriate environmental and cleanliness conditions, seein conformance with requirements from clause 4.4,

2. personnel are properlyis trained and certified in accordance with the training and certification programme specified in 1.1.1rrrrrrrr, 1.1.1ssssssss and 1.1.1tttttttt, and

3. the processes specifications, manufacturing and inspection procedures and workmanship standards including clear definition of manufacturing operations and clear acceptance criteria exist.

NOTE 1 Photographically documented if possible for visual acceptance criteria at the appropriate work and inspection stations.NOTE 2 For planning of manufacturing, assembly and integration

47


operation and inspection see ECSS-Q-ST-20.

7.7.4 Traceability of processesyyyyyyyyy. Traceability of processes shall be ensured in

conformance with requirements from clause 5.2.5 of ECSS-Q-ST-20.

7.7.5 Process nonconformances and alertszzzzzzzzz. Process nonconformances and alerts shall be

processed in conformance with requirements from clause 5 to clause 6 of ECSS-Q-ST-10-09 and clause 5.2.9 of ECSS-Q-ST-10.

7.7.6 Mandatory inspection points (MIP)aaaaaaaaaa. MIPs shall be defined in conformance with

requirements from clause 5.5.8 of ECSS-Q-ST-20.

7.7.7 Packaging, storage, removal from storagebbbbbbbbbb. The supplier shall define provisions for packaging,

storage, and removal from storage for products or semifinished products before and after implementation of processes.

48


Annex A (normative)Declared materials list (DML) - DRD

A.1 DRD identification

A.1.1 Requirement identification and source documentThis DRD is called from ECSS-Q-ST-70, requirement trequirements t and 1.1.1lllll.

A.1.2 Purpose and objectiveThe purpose of the DML is to have a detailed record of all the materials used to produce the products of a project or programme.The data in the DML make possible to assess whether the materials are suitable for a specific application, at the supplier and the customer levels (in the approval status column).The DML is prepared for each “Configuration item” at the relevant stages (e.g. at the start, PDR, CDR and QR) as defined in the flow chart given in Figure 4-1.The following documents are linked to the DML: the declared process list (DPL); request for approval (RFA) materials.

A.2 Expected response

A.2.1 Scope and content

<1> Materials groupsa. The DML shall contain the following statements:

1. “Materials are classified into 20 groups depending on their type or their main use, see A.2.1.1.Table A-1”.

2. “Primers are classified in the group of their associated component.”

49


3. “Where no project requirement exists for a separate DMPL, mechanical parts are entered on the DML as a separate group with the corresponding numbers.”

b. If new groups are created, for a given project, these shall have numbers over 21.

Table A-1: Material group numbersGroup

number Description1 Aluminium and aluminium alloys2 Copper and copper alloys3 Nickel and nickel alloys4 Titanium and titanium alloys5 Steels6 Stainless steels7 Filler metals: welding, brazing soldering8 Miscellaneous metallic materials9 Optical materials10 Adhesives, coatings, varnishes11 Adhesive tapes12 Paints and inks13 Lubricants14 Potting compounds, sealants, foams15 Reinforced plastics (including PCBs)16 Rubbers and elastomers17 Thermoplastics (e.g. nonadhesive tapes and foils

[MLI])18 Thermoset plastics (including PCBs)19 Material aspects of wires and cables20 Miscellaneous nonmetallic materials, e.g.

ceramics

<2> Contents of the DMLa. The DML shall include the information stated in Figure A-1,

where the header information identifies the list as the declared materials list and includes the issue number and date of issue, as follows:1. Item number (applicable to equipment manufacturer level

only)(a) This consists of the material group identifier and the

user code. It takes the form of:<group number>.<identifier within the group>.<running number>.<user code>

NOTE For example: 11.5.1.KOF.(b) Characteristics of the item number are:

50


The user, identified by an agreed user code for the project.

One only per material type. Does not change during the life of the materials

list (subitems are permitted when deemed necessary).

2. Commercial identification or standardized designation(a) Enter the correct and standard designation, such as

the trade name plus number.(b) If no trade name exists, enter the manufacturer’s

name plus number.(c) For metal alloys, the Aluminium Association (AA)

system is recommended for aluminium alloys, and the American Iron and Steel Institute (AISI) system for steel. For other metals or alloys, the main constituent is entered first except in the case of a traditional name.

NOTE For example: brass or bronze.(d) For each material, as designated in A.2.1<2>a2(a)

to(c), use a unique item number. If several lines are used for different applications or processing, add subitem numbers.

3. Chemical nature and product type(a) For metallic materials, add the condition as

procured if applicable.NOTE Examples of such conditions are rolled and heat treatment.

(b) Where a semifinished product is procured, give the relevant state.

NOTE Examples of such state are form, plate and sheet.

(c) Give the thickness of the material, that can be an important parameter.

NOTE Examples of chemical nature are: epoxy resin, polyurethane adhesive, Ti6Al4V.

4. Procurement information(a) Manufacturer or distributor: name of the

manufacturer and name of the distributor if different.

(b) Procurement specification: provide reference to one of the following: the procurement specification with issue, revision

and date. It may be replaced by a a national or international specification or

standard, if this exists, and identifies the source of procurement, (if relevant. Indication of), with issue or, revision and date is not applicable when datasheets are used

datasheets, in which case indication of issue or date is not applicable.

51


5. Processing parametersList here a summary of the process parameters applied by the user of the process.

NOTE E.g. mixture proportions, cure temperature, special cleaning agent, surface treatment, thermal treatment and temperature, and reference to specification number.

6. Use and location(a) Use codes able to define the location of the material

with respect to the: subsystem; particular piece of equipment (box or item); use of the equipment, e.g. a structural element,

thermal control, electrical insulation.NOTE If the CI number is not included in the list header, then a suitable abbreviation of the relevant subsystem is included.

(b) Include any restrictions that apply to the use of a particular material in the corresponding comment column.

7. Environmental codeThe environmental code is defined using A.2.1.1.Table A-1.

Table A-1: Environmental code

Radiation/UV/ATOX (R)a Ambience (A)Temperature

(T)b,c

G: Geostationary S: Outside shadow V: Vacuum 1: 0 K to 100 KL: Low orbit L: Outside light H: Hermetic 2: 101 K to 200 KB: Radiation belt M: Manned 3: 201 K to 300 KI: Interplanetary E: Elevated

pressure…

P: Planetarya For all materials, a letter is selected from the lefthand column. For materials on the

surface of the spacecraft, the letter “L” or “S” is added.b Thermal cycling to be indicated by two values, e.g. 3/5.c “RT” (room temperature) can be accepted as a code between 283 K (10 °C) and 313 K

(40 °C). NOTE: The materials that are at a boundary between environments are described by two

sets of codes.

8. Size codeThe size code is indicated by an alphanumeric combination, such as A5, V2 or M3, as in A.2.1.1.Table A-2.

52


Table A-2: Size codeSize code Value

0 0 < A or V or M 11 1 < A or V or M 102 10 < A or V or M 1003 100 < A or V or M 1 0004 …

where: A is the area, in cm2

V is the volume, in cm3

M is the mass, in g

9. Validation references, justification for approval and prime comments and prime approval(a) Make reference to relevant test data that

demonstrates the acceptability of the material under the environmental conditions and the application relevant to the particular project concerned. Specifically, in column 9.1, corrosion (CORR), stress corrosion (SCC), flammability (FLAM), offgassing (OFFG) and outgassing (OUTG) data or report-references are entered.

(b) Use standard abbreviations to summarize the acceptance status of a material for a particular property.

(c) Use the justification for approval (column 9.2) and prime approval (column 9.3) columns for any additional information to obtain customer approval.

(d) Standard abbreviations are used to summarize the acceptability or otherwise of a material for a specific property. These are defined for the project.

(e) Select the supplier approval status code from A.2.1.1.Table A-3.

10. Customer approval status code and comments(a) Select this code from Table A-3.(b) Include additional comments where appropriate.

b. If heritage is used as justification for approval it shall cover the current hardware configuration and mission profile.

53


Table A-3: Approval statusCode DescriptionA Approved.

All materials classified “A” may be used without restriction.

X Approved with an RFA.These materials are subjected to an evaluation or validation programme. The RFA number is entered as a comment.

W Approved with a concession.These materials do not meet the requirements but are used for functional reasons. The concession number is entered as a comment.

P Pending a decision.Materials for which an evaluation report or a concession is waiting for the customer’s provisional or definitive approval.

O Open.New materials or materials for which investigations and validations are in progress.

R Rejected.D Deleted.

This classification is used for a material that is no longer used.

NOTE If approval cannot be given and one of the other codes areis entered, enter the comments in the appropriate column.

A.2.2 Special remarksa. The change record shall list the successive issues and their

release dates since the first formal issue of the document.b. The change record shall include a brief description of the

updates which contributed to each issue or revision.NOTE ThisA.2.2Figure A-1 of this DRD recommendsproposes an example of the format and definedefines the content within the framework of a project or a programme.

54


DECLARED MATERIALS LIST (DML)Programme name: ABCDEFG CI no.: 12345676890

Group (Title): abcdefg

Doc no.: 001

Issue/Revision: 1/4

Date: 01.10.2000

Page: 1

1 2 3 4 5 6 7 89

109.1 9.2 9.3Item no. and user code

Commercial identification or standardized designation

1) Chemical nature

2) Product type

1) Manufacturer/ supplier name

2) Procurement spec.

Issue/RevDate

Summary of process parameters

1) Subsystem

2) Equipment

3) Use

1) R

2) A

3) T

1) A

2) V

3) M

Acronym/ rating/ Validation Ref. for applicable properties

1) Justification for approval

2) Prime comments

Prime approval status

Customer approval status/ comments

1.2.1.TXES

AZ5GU 1) Al.Zn5.6 Mg2.5 Cdu1.6, Cr0.3 eq. AA7075

2) Plate

1) Almet Pechiney

2) CRB 527

01/02/01.02.1996

T7351 and Iridit 14 heat treatment

1) PL

2) E4 package

3) Structure

1) LS

2) V

3) 3

1)

2)

3) M3

1) Used on ETS2

2)

A AGive evidence of ETS2 specific usage

10.1.1.ETCA

DC93500 1) Silicon

2) Two parts

1) Dow Corning

2) E3846MC10S

02/02/1984

Mixture: 10/1 in g

Curing: 4h/65 ºC

1) PCU

2) Experiment tray

3) Part potting

1) G

2) V

3) 3-4

1)

2)

3) M3

1) ECSSQ-ST-70-01

2)

A A

11.5.1.KOF

ECCOFOAM EPH

1) Polyurethane

2) Resin/Catalyst 1202H

1) Emerson and Cuming

2) SP/FOK/05/684

03/01/25.06.1992

Resin/ Cat: 100/65g4h/40 C+48h/100 C

1) GP

2) Platform

3) Package potting

1) LS

2) M

3) 3-4

1)

2) V3

3)

1) DU–96–352

2) Used at T > 100 C(Risk of distortion beyond)

A A

Figure A-1: Example of a realized DML

55


Annex B (normative)Declared mechanical parts list (DMPL) -

DRD

B.1 DRD identification

B.1.1 Requirement identification and source documentThis DRD is called from ECSS-Q-ST-70, requirement urequirements u and 1.1.1aaaaaaa.

B.1.2 Purpose and objectiveThe purpose of the DMPL is to have detailed record of all the mechanical parts used to produce the products of a project or programme.The data in the DMPL make possible to assess whether the mechanical parts are suitable for a specific application, at the supplier and customer levels (in the approval status column).The DMPL is prepared for each “Configuration item” at the relevant stages (e.g. Start, PDR, CDR and QRR) as defined in the flow chart given in Figure 4-1 of ECSS-Q-ST-70.The following document is linked to the DMPL: request for approval (RFA) mechanical parts.

B.2 Expected response

B.2.1 Scope and content

<1> Mechanical parts groupsa. The DMPL shall contain the following statements:

“Mechanical parts are classified into 11 groups depending on their type or their main use” (see Table B-1).

b. If, for a given project it is considered necessary to create new groups, these shall have numbers over 61.

56


c. Items that appear in the EEE parts list should not be repeated here.

NOTE For example, heaters, some valves, thermostats, relays, transformer coils and solenoids.

Table B-1: Mechanical part group numbersGroup

number Description51 Spacing parts (e.g. washers and spacers)52 Connecting parts (e.g. bolts, nuts, rivets, inserts

and clips)53 Bearing parts (e.g. ballbearings and needle

bearings)54 Separating parts (e.g. pyrotechnics, springs and

cutters)55 Control parts (e.g. gears)56 Fluid handling parts (e.g. diffusers)57 Heating parts58 Measuring instruments (e.g. gauges and

thermocouples)59 Optical passive equipment60 Magnetic parts61 Other parts

<2> Contents of the DMPLa. The DMPL shall include the information in Figure B-1, where

the header information identifies the list as the declared mechanical parts list and includes the issue number and date of issue, as follows:1. Item number (applicable at equipment supplier level only)

(a) This consists of the mechanical part identifier and the user code. It takes the form of:<group number>.<identifier within the group>.<running number>.<user code>

NOTE For example: 7.2.1.ACSA.(b) Characteristics of the item number are:

Identify the subcontractor by an agreed user code for the project.

One only per mechanical part type. Does not change during the life of the mechanical

parts list.2. Commercial identification

(a) Enter the correct and standard designation, such as trade name plus number.

(b) If no trade name exists then enter the manufacturers’ name and number.

57


3. Type of partDescribe the material and surface treatment (if applicable).

4. Procurement information(a) Manufacturer or distributor: name of the

manufacturer and name of the distributor if different.

(b) Procurement specification: provide reference to one of the following: the procurement specification with issue, revision

and date. It may be replaced by a national or international specification or

standard, if this exists, and identifies the source of procurement (if relevant), with issue, revision and date.

5. Elementary function, main characteristics(a) Enter the function of the mechanical part.(b) Enter the main characteristics of the mechanical

part.NOTE For example, number of revolutions per minute for a ball bearing.

6. Use and locationUse codes able to define the location of the mechanical part with respect to the:(a) subsystem;(b) particular piece of equipment (box or item);(c) use of the equipment.

7. Environmental codeThe environmental code is defined using B.2.1.1.Table B-1.

Table B-1: Environmental codeRadiation/UV/ATOX (R)a Ambience (A) Temperature

(T)b,c

G: Geostationary S: Outside shadow

V: Vacuum 1: 0 K to 100 K

L: Low orbit L: Outside light H: Hermetic 2: 101 K to 200 KB: Radiation belt M: Manned 3: 201 K to 300 KI: Interplanetary E: Elevated

pressure

P: Planetarya For all mechanical parts, a letter is selected from the lefthand column. For mechanical

parts on the surface of the spacecraft, the letter “L” or “S” is added.b Thermal cycling to be indicated by two values, e.g. 3/5.c “RT” (room temperature) can be accepted as a code between 283 K (10 °C) and 313 K

(40 °C).

58


8. CriticalityEnter “C” for critical or “N” for noncritical. If a mechanical part is considered critical, describe the reason for the criticality and methods of control.

9. Supplier reference, prime comments and prime approval status (a) Use the supplier reference, prime comments and

approval columns to enter anyall additional information that can beare necessary in order to obtain customer approval.

(b) This information comprises reference and issue of the RFA or approval, mechanical parts justification file, evaluation reports and deviation requests.

(c) Make reference to the relevant test data that demonstrates acceptability of the mechanical part under the environment conditions and the application relevant to the particular project concerned.

(d) Use standard abbreviations, defined by the customer, to summarize the acceptance status of a mechanical part for a particular property.

(e) In order to justify the use of a material for flammability resistance, list here the material thickness and height of oxygen share.

(f) Select the prime approval status code from B.2.1.1.Table B-2.

10. The customer approval status code and comments(a) Select this code from B.2.1.1.Table B-2. (b) Include additional comments where appropriate.

59


Table B-2: Approval statusCode Description

A Approved All mechanical parts classified “A” may be used without restriction.

X Approved with an RFAThese mechanical parts are subjected to an evaluation or validation programme. The RFA number is entered as a comment.

W Approved with a concessionThese mechanical parts do not meet the requirements but are used for functional reasons. The use of such mechanical parts is approved by the customer. The concession number is entered as a comment.

P Pending a decisionMechanical parts for which an evaluation report or a concession is waiting for the customer’s provisional or definitive approval.

O OpenNew mechanical parts or mechanical parts for which investigations and validations are in progress.

R Rejected.D Deleted

This classification is used for a mechanical part that is no longer used.

NOTE: If approval cannot be given and one of the other codes areis entered, enter the comments in the appropriate column.

B.2.2 Special remarksa. The change record shall list the successive issues and their

release dates since the first formal issue of the document.b. This record shall include a brief description of the updates

which contributed to each issue or revision.NOTE This DRD recommendsB.2.2Figure B-1 of this DRD proposes an example of the format and defines the content within the framework of a project or a programme.

60


DECLARED MECHANICAL PARTS LIST (DMPL)Programme name: ABCDEFG CI no.: 12345676890

Group (Title): abcdefgDoc no.: 001Issue/Revision: 1/4

Date: 01.10.2000Page: 1

1 2 3 4 5 6 7 89

109.1 9.2Item no. and user code

Commercial identification

Type of part 1) Procurement specification

2) Issue/Revision/ Date

1) Elementary function

2) Main characteristics

1) Subsystem

2) Equipment

3) Use

1) R

2) A

3) T

1) Criticality

2) Reason and method of control

1) Supplier Reference

2) prime comments


Customer approval status/comments

51.2.1.ACSA

ESA003521000120

Copper/AL bimetal ring

1) AIEV

2) From catalogue

1) Separator ring

2) Heat conductor

1) TC

2) Plate interface

3) Spacing and heat inspection

1) G

2) V

3) 3-4

1) N

2)

1) Used on all projects

2)

A A

52.2.1.ASAD

A0090TX...XA

Ti6Al4V screws > M4

1) White areo

2) ASNA0090 DSN2413

1) assembly

2)

1) PTANK

2) plate

3) fixing

1) G

2) V

3) 3-4

1) N

2)

1) Used on TC2

2)

A A

60.1.1.ACSA

42908TC/F Ferrite cores magnetic

1) Magnetics, Data sheet

2) SP/MAGN/003

01.02/03.06.1999

1) Coil core of transformer

2) Magnetic component

1) TC

2) South face

3) Heat regulation

1) G

2) V

3) 3-4

1) C2) to be qualified

1)

2)

Figure B-1: Example of a realized DMPL

61


Annex C (normative)Declared process list (DPL) - DRD

C.1 DRD identification

C.1.1 Requirement identification and source documentThis DRD is called from ECSS-Q-ST-70, requirement vrequirements v and 1.1.1aaaaaaaaa.

C.1.2 Purpose and objectiveThe purpose of the DPL is to have a detailed record of all the processes used to produce the products of a project or programme.The data in the DPL make possible to assess whether the processes are suitable for a specific application, at the supplier and customer levels (in the approval status column).The DPL is prepared for each “Configuration item” at the relevant stages (e.g. Start, PDR, CDR and QRR) as defined in the flow chart given in Figure 4-1 of ECSS-Q-ST-70.The following documents are linked to the DPL: declared material list (DPL), request for approval (RFA) processes.

C.2 Expected response

C.2.1 Scope and content

<1> Process groupsa. The DPL shall contain the following statements:

Processes are classified into 17 groups depending on their type or their main use, see C.2.1.1.Table C-1.

b. If, for a given project it is considered necessary to create new groups, these shall have numbers over 17.

62


Table C-1: Process group numbersGroup

number Description1 Adhesive bonding2 Composite manufacture3 Encapsulation/moulding4 Painting/coating5 Cleaning6 Welding/brazing7 Crimping/stripping/wire wrapping8 Soldering9 Surface treatments10 Plating11 Machining12 Forming13 Heat treatment14 Special fabrication: processes developed

specifically for the programme15 Marking16 Miscellaneous processes17 Inspection procedures

<2> Contents of the DPLa. The DPL shall include the information in Figure C-1, where the

header information identifies the list as the declared processes list and includes the issue number and date of issue, as follows1. Item number (applicable to equipment supplier level only)

(a) This consists of the process identifier and the user code. It takes the form of <group number>.<identifier within the group>.<running number>.<user code>

NOTE For example: 1.2.1.SSEX(b) Characteristics of the item number are:

Identify the subcontractor by an agreed user code for the project.

One only per process type. Does not change during the life of the process

list.2. Process identification

Indicate the correct and standard identification of the process, e.g. the process name or title: bonding, coating or soldering.

3. Specification(a) Identify the name or abbreviation of the process

executor.

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(b) Make a reference to the associated procedure, together with the issue, revision and date.

NOTE For example, national, international, EN, ISO, ECSS or company inhouse.

4. Process descriptionEnter here a short description of the process.

5. Use and locationUse codes able to define the location of the process with respect to the:(a) subsystem,(b) particular piece of equipment (box or item),(c) use of the equipment.

NOTE For example, a structural element, thermal control, electrical insulation).

6. This column number is not used.7. Associated item numbers

Enter the associated material list (DML) or mechanical parts list (DMPL) with the process.

8. Criticality(a) Enter “C” for critical or “N” for noncritical.(b) If a process is considered to be critical, Enter the

references to the relevant RFA.9. Supplier reference, prime comments and approval

(a) Use the supplier reference and approval columns to enter anyall additional information that can beare necessary to obtain customer approval.

(b) Select the supplier approval status code from C.2.1.1.Table C-1.

(c) Give reference to qualification programme performed for critical processes.

10. The customer approval status code and comments(a) Select this code from C.2.1.1.Table C-1.(b) Include additional comments where appropriate.

b. If heritage is used as justification for approval it shall cover the current hardware configuration and mission profile.

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Table C-1: Approval statusCode Description

A Approved All processes classified “A” may be used without restriction.

X Approved with an RFAThese processes isare subjected to an evaluation or validation programme. The RFA number is entered as a comment.

W Approved with a concessionThese processes do not meet the requirements but are used for functional reasons. It is important to reduce the use of such processes to a minimum. All deviation requests are approved by the customer. The concession number is entered as a comment.

P Pending a decisionProcesses for which an evaluation report or a concession is waiting for the customer’s provisional or definitive approval.

O OpenNew processes or processes for which investigations and validations are in progress.

R Rejected.D Deleted

This classification is used for a process that is no longer used.

If approval cannot be given and one of the other codes areis entered, enter the comments in the appropriate column.

C.2.2 Special remarksa. The change record shall list the successive issues and their

release dates since the first formal issue of the document.b. This record shall include a brief description of the updates

which contributed to each issue or revision.NOTE This DRD recommendsC.2.2Figure C-1 of this DRD proposes an example of the format and define the content within the framework of a project or a programme.

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DECLARED PROCESS LIST (DPL)Programme name: ABCDEFG CI no.: 1234567890

Group (Title): abcdefgDoc no.: 001Issue/Revision: 1/5

Date: 14.05.2000Page: 1

1 2 3 4 5 7 89

109.1 9.2Item no. and user code

Process identification

1) User name

2) Associated procedure issue/revision/ date

Process description

1) Subsystem code

2) Equipment code

3) Use

Associated DML or DMPL item number

1) Criticality

2) Reason for criticality

1) Supplier Reference

2) Prime comments


Customer approval status/ comments

1.2.1.SSEX Bonding 1) EREMS

2) E/SQ/PI/012

02/01/02.08.1984

Applying a spot of glue with a stainless steel dispenser

1) BE3

2) C5 board

3) To fix parts

6.1.2.ETC 1) N

2)

1) Used on ANTARES

2)

A AGive evidence of ANTARES specific usage

4.3.1.KOF Coating 1) CERCO

2) E/SQ/PI/023

02/01/08.12.1985

Coating by paintbrush or by immersion in the resin

1) BE3

2) C1 C2 boards

3) Protection of CI and EEE parts

2.1.1.KOF 1) N

2)

1) Used on PASTEC, ANTARES

2)

A AGive evidence of PASTEC ANTARES specific usage

8.3.1.KOF Vapour phase soldering of SMDs

1) EREMS

2) E/SQ/PI/026

01/02/09.09.1997

ECSS-Q-ST-70-38

1) BE3

2) C3

3)

15.1.1.AST 1) C

2)

1) QM/04L123/ BD/MH Table 1

2)

A A

Figure C-1: Example of realized DPL

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Annex D (normative)Request for approval (RFA) - DRD

D.1 DRD identification

D.1.1 Requirement identification and source documentThis DRD is called up from ECSS-Q-ST-70, requirement ppppprequirements 1.1.1ooooo, 1.1.1ddddddd and 1.1.1ddddddddd.

D.1.2 Purpose and objectiveThe objective of an RFA is to enable the supplier to request from the customer permission to use a critical mechanical part, material or process.The information provided by the supplier makes possible for the customer to assess whether the critical mechanical part, material or process is suitable for a specific application.The RFA is prepared for each critical mechanical part, material or process at the relevant stages as defined in the in flow chart given in Figure 4-1 of ECSS-Q-ST-70.The following documents are linked to the RFA: declared mechanical parts list; declared materials list; declared process list.

D.2 Expected response

D.2.1 Scope and contenta. The RFA should contain the information in Figure D-1 (pages 1

and 2), as follows:1. The header information, identifying the document as a

request for approval together with the project logo and project name, RFA reference, issue revision and date.

2. OriginatorOriginator’s name and reference.

3. LocationSubsystem and equipment codes.

4. Item description

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Brief description of the item.5. PMP information

The DML, DMPL or DPL item number and list reference.6. Item status, including the following information:

(a) manufacturers’ name and qualification reference;(b) suppliers’ name and qualification status;(c) product or material specification;(d) procurement specification;(e) process or handling specification;(f) other related process or handling specifications;(g) verification or qualification specification;(h) report on verification or qualification.

7. Reason for RFAEnter the reason for the RFA.

8. Application and location detailsEnter here the details of the application and exact location of the item.Give the reference in the CIL.

9. Evaluation and validation programmeReference and details of main tests.

10. Subcontractor supplier approval for the first issue of the RFA.

11. Customer initial decision, to be entered on first issue of the RFA providing:(a) the decision concerning the proposed material,(b) the requirement to perform tests (deviation request

as necessary), and(c) the decision concerning the proposed test

programme.12. Customer’s and final customer’s (if applicable) signature13. Justification results obtained with reference to the

supplier’s validation report and conclusion.14. Subcontractor supplier approval on RFA final issue.15. Final approval status of the RFA by the customer.

D.2.2 Special remarksa. The RFA shall be completed by the supplier (parts 1 to 10, 13

and 14) and the customer (parts 11, 12 and 15).

1 Company: Project: Reference: RFA- Page1 of 2

IssueRevision

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DateRequest for approval (RFA)

2 Originator: 3 Subsystem:Originator reference: Equipment:

4 Item description: 5 PMP list item number:PMP list reference:

6 Item statusManufacturer: Manufacturer qualification reference:

Supplier: Qualification status:

Product/material specification: Procurement specification:

Process/handling specification: Related specification:

Verification/qualification specification: Report:

7 Reason for RFA

8 Application/location details: CIL Reference:

9 Evaluation/validation programme (title, reference)Tests

Plan, procedures, schedule to be attached

Figure D-1: Example of RFA (Page 1 of 2)

1 Company: Project: Reference: RFA- Page 2 of 2

IssueRevisionDate

Request for approval (RFA)10

Materials and processes responsible PA responsible Project responsible

Supplier approval on

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RFA first issue 11

Decision on RFA first issue: Comments:

- Request refused:- Submit deviation:- Proceed with validation programme:

12 Decision


Customer agree/disagreeFinal customer (if applicable) agree/disagree

13

Justification results

Validation report (title and reference)

Conclusion:

Validation report to be attached14

Supplier approval on RFA final issue


15

Decision on RFA final issue


Customeragree/disagreeHigher level customers (as necessary) agree/disagree

Figure D-1: Example of RFA (Page 2 of 2)

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Annex E (informative) Relationship between materials,

mechanical parts, processes activities and programme phases

E.1 Feasibility phase (phase A)In phase A, the materials, mechanical parts and processes product assurance tasks are carried out in order to:a. identify main programme constraints on materials, mechanical

parts and processes,b. define the policy, andc. plan the product assurance tasks for the project definition

phase.

E.2 Preliminary definition phase (phase B)In phase B, the materials, mechanical parts and processes product assurance tasks are carried out in order to:a. define or identify requirements,b. identify main new items needed and plan corresponding

necessary actions for phase C,c. plan the product assurance tasks for the detailed design,

development, manufacturing, integration and test phase and prepare the materials, mechanical parts and processes plan as part of the PA plan, and

d. support preliminary design review.

E.3 Detailed definition and production phase (phase C or D)In phase C or D, the materials, mechanical parts and processes product assurance tasks are carried out in order to:a. identify materials, mechanical parts and processes;b. issue preliminary lists;c. identify critical items;d. establish or review RFA;

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e. support mandatory inspection points identification;f. establish evaluation programme, perform test or review test

results;g. establish validation, qualification, or verification programmes

(e.g. perform tests or review test results);h. support nonconformance processing (NRB, failure review

board);i. establish the asdesigned lists;j. support the critical design review;k. support the qualification review;l. establish the final asdesigned (updated) lists;m. support release of manufacture of flight hardware;n. support final acceptance review.

E.4 Utilization phase (phase E)In phase E, the materials, mechanical parts and processes product assurance tasks are carried out in order to:o. support the series manufacturing of recurring products,p. support the investigation of operational phase anomalies, andq. update the asflown materials lists to incorporate the new

materials that have been added or changed as a result of NCR activities. In particular, the PMP lists should include the actual materials flown on manned and reusable spacecraft and their payloads.

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Annex F (informative)MMPP documents delivery with respect to

milestones

Scope of the Table F-1 is to present relation of documents associated to mechanical parts, material and processes activities to support project review objectives as specified in ECSS-M-ST-10.

NOTE This table constitutes a first indication for the data package content at various reviews. The full content of such data package is established as part of the business agreement, which also defines the delivery of the document between reviews.

The table lists the documents necessary for the project reviews (identified by “+”).The various crosses in a row indicate the increased levels of maturity progressively expected versus reviews. The last cross in a row indicates that at that review the document is expected to be completed and finalized.

NOTE All documents, even when not marked as deliverables in Table F-1 are expected to be available and maintained under configuration management as per ECSS-M-ST-40 (e.g. to allow for backtracking in case of changes).

Table F-1 presents the reviews at which the different issues of the ECSS-Q-ST-70 and ECSS-Q-ST-70-01 documents are expected.

NOTE Other MMPP deliverable document requirements definitions (DRDs) are contained in the ECSS-Q-ST-70-XX documents.

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Table F-1: MMPP documents delivery w.r.t. milestones

Document TitleReviewsPhase

DRD Ref.MDR PRR SRR PDR CDR QR AR ORR FRR LRR CRR ELR

Declared materials list (DML) + + + + ECSS-Q-ST-70, Annex A

Declared mechanical parts list (DMPL) + + + + ECSS-Q-ST-70, Annex B

Declared process list (DPL) + + + + ECSS-Q-ST-70, Annex C

Request for approval (RFA) + + + + ECSS-Q-ST-70, Annex D

Cleanliness Requirement Specifications (CRS) + + + + + ECSS-Q-ST-70-01, Annex A

Cleanliness and contamination control plan (C&CCP)

+ + + + ECSS-Q-ST-70-01, Annex B

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Bibliography

ECSS-S-ST-00 ECSS system - Description, implementation and general requirements

ECSS-M-ST-10 Space project management - Project planning and implementation

ECSS-M-ST-40 Space project management - Configuration and information management

ECSS-Q-TM-70-52

Space product assurance - Kinetic outgassing of materials for space

MIL-HDBK-454 General Guidelines for Electronic EquipmentNASA MAPTIS Materials and Processes Technical Information

SystemNASA STD-6001 Flammability, odour, offgassing and

compatibility requirements and test procedures for materials in environments that support combustion (previously NHB 8060 1C)

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Documents

ECSS-Q-ST-70C Rev.1esa.vpsearch.nl/wordpress/wp-content/uploads/standards/... · Web viewThis Standard has been prepared by the ECSS-Q-ST-70C Rev.1 Working Group endorsed by the document